A guide transition sleeve for connecting a dressing body and a guide sleeve

Abstract

The invention discloses a guide transition sleeve used for connecting a binding body with a guide sleeve. The guide transition sleeve comprises a binding body connecting end (1) and a guide sleeve connecting end (2). A connecting arm (3) is located between the binding body connecting end (1) and the guide sleeve connecting end (2). The binding body connecting end (1) is provided with two limiting protrusions (11) used for limiting the guide transition sleeve and the binding body in the circumferential direction. A cylindrical groove (21) is formed in the guide sleeve connecting end (2) and used for being connected with the guide transition sleeve. The end face of the guide sleeve connecting end (2) is provided with a plurality of threaded blind holes (22). The binding body connecting end (1) is provided with annular protrusions (12). The annular protrusions (12) are provided with a plurality of countersunk through holes (121) and threaded through holes (122). The guide transition sleeve has no influence on the precision of deep hole drilling equipment, and the deep hole drilling equipment does not need to be checked after the guide transition sleeve is dismantled. Meanwhile, replacing of a lengthened binding body is avoided.

Description

technical field [0001] The invention belongs to the field of deep hole drilling for hydrophobic holes of sealing heads, in particular to the field of deep hole drilling for long-distance inclined holes, and in particular to a guide transition sleeve for connecting a wrapping body and a guide sleeve. Background technique [0002] At present, the manhole of the water chamber head and each nozzle of the steam generator equipment are equipped with drain pipes. The processing of the water pipe hole is widely used in the manufacture and production of nuclear power equipment. At the same time, with the rapid development of nuclear power technology, The manufacturing technology of steam generator equipment is gradually being widely used. However, in the manufacturing process of steam generators in the past, due to the influence of the structural size of the manhole and the nozzle, if the boring and milling machine is used to process the drain hole, the processing process is complica...

AI Technical Summary

Problems solved by technology

[0004] The extended dressing is part of the deep hole drilling equipment. Due to its slightly larger weight and larger dimensions, after each replacement, calibration and testing of the accuracy of the equipment is required, which takes 2-3 days and has a great impact The production schedule has been shortened, the production cycle has been extended, and the fragile dressing body has been disassembled and replaced many times

Therefore, at this stage, when performing long-distance deep hole processing, especially oblique hole processing, the need to replace the dressing body is still a difficult technical problem so far.

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